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A note on the cytology of the pineal body of the sheep

✍ Scribed by Jordan, H. E.

Publisher: John Wiley and Sons
Year: 1921
Tongue: English
Weight: 733 KB
Volume: 22
Category: Article
ISSN: 0003-276X
DOI: 10.1002/ar.1090220405

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✦ Synopsis

Nota sobre la citologia del cuerpo pineal de la oveja. Las c6lulas de "interneuroglia" del cuerpo pineal de la oveja de cuatro a ocho meses se caracterizan, (en el tejido fijado durante cuatro semanas en una soluci6n a1 2 por ciento de Bcido 6smico) , por la abundancia de pequeilas mitocondrias esfericas y un ndmero variable de gl6bulos lipoides msis grandes. Entre la cantidad de mitocondrias y la de gotitas de lipoide existe una relaci6n recfproca bastante aparente. La existencia de una relaci6n gen6tica entre ambas estructuras, como se ha indicado, sigue siendo una cuestibn pendiente de soluci6n. Los gl6bulos de lipoide constituyen la dnica prueba citol6gica indicadora de una actividad secretora Las c6lulas carecen aparentemente de centrosoma y se dividen solamente por amitosis durante este periodo. Ciertas transformaciones, tanto fisio-16gicas como mecBnicas, en las grandes gotas de lipoide producen estructuras que simulan un reticulo de Golgi y un trof ospongio.

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